Slowhelix is a project mainly written in Python, it's free.
Python implementation of slowloris, probably not as robust, however it was an experiment to see if I could recreate it. Also please note, I am not responsible for how this tool is used I made this simply as a challenge to myself.
The Slowhelix project is an experiment to try and recreate slowloris in python3. The project gained inspiration from a demonstration of another slowloris clone. Slowhelix is probably not as good as the original slowloris and that is understandable. It was not designed to be the best at what it does. Maybe in time it might grow and become more refined but that is not what the goal of this project is. It is as stated before as a personal challenge to try and recreate the effect slowloris has. In this it is successful.
python 3.x
It is really really easy to use mostly because a lot of configurable values are hard coded into the program. (this maybe change with time).
python slowhelix.py the.target.host
This script was written purely as an educational excercise. The author(s) do not condone the use of this script to DoS web servers. That may be its purpose in being created however doing it as a controlled test of knowledge is very different then using it to malicously harm a website.
I would like to acknowledge the writer of the original slowloris.pl script and the other clone which inspired this version.